Math.ceil() function in JavaScript is used to round the number passed as a parameter to its nearest integer in an Upward direction of rounding i.e. towards the greater value.
Syntax:
Math.ceil(value);Parameters:
This function accepts a single parameter as the number to be rounded to its nearest integer in the upward rounding method.
Return Value:
Result after rounding the number passed as a parameter to the function.
Examples:
Input : Math.ceil(4.23)
Output : 5
Input : Math.ceil(0.8)
Output : 1
Errors and Exceptions:
- A non-numeric string passed as a parameter returns NaN.
- An array with more than 1 integer passed as a parameter returns NaN.
- An empty variable passed as a parameter returns NaN.
- An empty string passed as a parameter returns NaN.
- An empty array passed as a parameter returns NaN.
Example 1: In this example, we have used Math.ceil function.
Javascript
<!-- NEGATIVE NUMBER EXAMPLE -->console.log(Math.ceil(-2));console.log(Math.ceil(-2.56)); |
Output
-2 -2
Example 2: In this example, we have used Math.ceil function.
Javascript
<!-- POSITIVE NUMBER EXAMPLE -->console.log(Math.ceil(2));console.log(Math.ceil(2.56)); |
Output
2 3
Example 3: In this example, we have used Math.ceil function.
Javascript
console.log(Math.ceil("Geeksforgeeks"));
|
Output
NaN
Example 4: In this example, we have used Math.ceil function.
Javascript
<!-- ADDITION INSIDE FUNCTION EXAMPLE -->console.log(Math.ceil(7+9)); |
Output
16
Supported Browsers:
- Google Chrome 1 and above
- Internet Explorer 12 and above
- Firefox 1 and above
- Opera 3 and above
- Safari 1 and above